Re: [PATCH v2 6/9] rust: device: implement Bound device context

From: Bjorn Helgaas
Date: Tue Apr 15 2025 - 16:44:56 EST


On Sun, Apr 13, 2025 at 07:37:01PM +0200, Danilo Krummrich wrote:
> The Bound device context indicates that a device is bound to a driver.
> It must be used for APIs that require the device to be bound, such as
> Devres or dma::CoherentAllocation.
>
> Implement Bound and add the corresponding Deref hierarchy, as well as the
> corresponding ARef conversion for this device context.
>
> Signed-off-by: Danilo Krummrich <dakr@xxxxxxxxxx>
> ---
> rust/kernel/device.rs | 16 +++++++++++++++-
> 1 file changed, 15 insertions(+), 1 deletion(-)
>
> diff --git a/rust/kernel/device.rs b/rust/kernel/device.rs
> index 487211842f77..585a3fcfeea3 100644
> --- a/rust/kernel/device.rs
> +++ b/rust/kernel/device.rs
> @@ -232,13 +232,19 @@ pub trait DeviceContext: private::Sealed {}
> /// any of the bus callbacks, such as `probe()`.
> pub struct Core;
>
> +/// The [`Bound`] context is the context of a bus specific device reference when it is guranteed to
> +/// be bound for the duration of its lifetime.

s/guranteed/guaranteed/